JPS598148Y2 - Solar heat collector for roof use - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a solar heat collector that can also be used as a roof.
The present invention is characterized in that roofing materials connected to each other to form a roof are used as structural members of a solar heat collector.

In other words, the gist of this invention is to form the upper horizontal part of each roof part with a transparent material, to form a space below this upper horizontal part, and to install a heat collector in this space. By using a roof member to protect the transparent plate and casing, which are the main components of a solar heat collector, the structure is simplified, construction is easier, and the heat collection is improved. The object of the present invention is to provide a solar heat collector that can be used as a roof as well, and has features such as being able to be used as a flat roof with excellent strength resistance, since the body serves as reinforcement for the roof member.

Examples of this invention will be described below based on the drawings.

Figures 1 and 2 show a cross-sectional perspective view and an enlarged cross-sectional view of the main parts of the first embodiment of this invention. A waterproof layer 3 such as plastic or shinito is applied,
It shows a roof structure composed of a plurality of roof members 5, 5, .

The roof member 5 has a rectangular section 7 at one end of the upper horizontal section 6.
, and locking protrusions 9 and 10 are formed on opposing surfaces of inner and outer side walls 8 and 8', respectively, which define this b-shaped section 7.

In this case, the locking protrusion 10 provided on the outer side wall 8' projects inward from the top of the outer side wall 8', but the height of the top is lower than the upper surface horizontal portion 6. In addition, when adjacent roof members 5 are connected, consideration is given so that the upper horizontal portions 6 of the adjacent roof members 5 become substantially on the same plane.

Further, a mounting flange portion 11 extending from the bottom wall of the cross-sectional portion 7 is formed on the outside of the cross-sectional portion 7, and a fixing device 12 such as a nail or screw is driven into this mounting flange portion 11. Attach the roof member 5 to the roof board 2 and the rafters 1.
can be fixed.

On the other hand, the other end of the upper horizontal portion 5 is formed with a mounting groove 13 that can be engaged with a locking protrusion 10 formed on the outer side wall 8' of the section-shaped portion 7. A locking protrusion 9' is formed on the outer surface of the connection side of 13 and protrudes in the same manner as another locking protrusion 9 projecting from the inner side wall 8.

Further, a side wall portion 14 is vertically provided on the lower surface of the upper surface horizontal portion 6 on the side of the mounting groove 13, and protrudes facing the inner side wall 8 of the cross-sectional shape portion 7. The inner side wall 8 and the lower end of the side wall portion 14 are respectively formed with arcuate grooves 15, 15 at opposite locations.

Further, on the lower surface of the upper surface horizontal portion 6 between the inner side wall 8 and the side wall portion 14, a plurality of small protrusions 16, 16, . .

The roof member 5 constructed as described above has at least the upper horizontal portion 6 made of a transparent resin material, and the lower surface connecting plate 1 is also made of a resin material.
an arcuate groove 15.1 provided with arcuate edges 18, 18 on the inner side wall 8 and side wall portion 14, respectively;
5 to form a space 19 between this connecting plate I 17 and the upper horizontal portion 6.

In this space 19, there is a heat collecting function having a function of converting sunlight passing through the upper surface horizontal part 6 into heat energy, and a function of transmitting the converted heat energy to a fluid such as water to heat it. A body 20 is now equipped.

In this case, the heat collector 20 is in contact with a heat collector plate 21 made of a material with good thermal conductivity such as aluminum, and a fluid passage such as water inside the heat collector plate 21, which is in contact with the lower surface of the heat collector plate 21. 22', and a heat collecting pipe 22 formed into a hollow square shape, for example, by an aluminum section, a steel pipe, etc.
Furthermore, a black heat absorbing layer 23 is provided on the surface, that is, the upper surface, of the heat collecting plate 21 in order to improve heat absorption.

The heat collector 20 constructed in this way has small protrusions 16, 16, 16, 16, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 20, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 20, 20s type type type type type types, each of which has a heat collection plate 21 provided on the lower surface of the upper horizontal portion 6.
... to form an air layer 24 between the upper surface horizontal portion 6 and the heat collecting plate 21, and the lower surface of the heat collecting pipe 22 in contact with the lower surface of the heat collecting plate 21 and the lower surface connecting plate 17. A heat insulating sheet 25 is placed in between.

Note that the heat insulating sheet 25 may not be provided and the lower connecting plate 17 may be used instead of the heat insulating portion.

Further, although the drawing shows a case where two heat collecting pipes 22 are disposed within the space 19, the number can of course be set arbitrarily.

Each roof member 5 provided with the heat collector 20 having the above structure is
The other end (left end in FIG. 1) of the upper surface horizontal portion 6 of the roof member 5 adjacent to the locking protrusion 10 of the cross-sectional portion 7 formed at one end (the right end in FIG. 1) of the upper surface horizontal portion 6 After engaging the mounting groove 13 shaped as shown in FIG. Adjacent roof member 5 with the connecting cap 4 having 4', 4'
, 5 are connected to form a roof.

In this case, a sealing material 26 is interposed between the connecting portions to maintain watertightness between the connecting portions.

In this way, each of the plurality of roof members 5 is connected by the connecting cap 4, and a space 1 is formed between the upper surface horizontal portion 6 and the lower surface connecting plate 17 that constitute the roof member 5.
A heat collector 20 is provided inside the roof 9 to form a roof for utilizing solar heat.

In other words, the sunlight passing through the upper horizontal portion 6 is transferred to the heat collecting plate 2.
1 and converts it into thermal energy, and transmits the converted thermal energy to the heat collecting pipe 22, and the passage 22 of the heat collecting pipe 22
It is possible to heat a fluid such as water supplied into the chamber.

FIG. 3 shows a second embodiment of this invention, in which the lower surface of the upper horizontal portion 6 is shaped flat, and the heat collecting plate 21 is brought into close contact with this flat surface to improve heat reception during long-term use. This is a case where a reduction in efficiency is prevented.

That is, in practice, as shown in the first embodiment, it is better to form an air layer 24 between the upper surface horizontal portion 6 that forms a transparent plate and the heat collecting plate 21 for better heat reception and heat retention efficiency. However, during long-term use, dust etc. can damage the top horizontal part 6.
Since there is a risk that the light transmittance of the upper surface may be lowered, there is a problem that the heat receiving efficiency will be lower than that at the time of use. In particular, consideration has been given to ensuring that the heat receiving efficiency does not decrease, and stabilization can be achieved during long-term use.

In the second embodiment, the same parts as in the first embodiment are given the same reference numerals, and their explanations are omitted.

As explained above, the solar heat collector of this invention uses the transparent plate and the casing, which are its structural members, as the roof member, so it has a simple structure and is easy to install. Since a heat collector is disposed inside the heat collector, it is possible to form a flat roof structure or the like which is reinforced by the heat collector and has excellent durability.

Furthermore, since the roof member is formed of a composite resin with relatively low thermal conductivity, less of the collected heat is released to the outside, making it possible to create a solar heat collector with good thermal efficiency. Its utility value is remarkable.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional perspective view showing the first embodiment of the solar heat collector of this invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, and Fig. 3 is a cross-sectional view showing the second embodiment of this invention. There is a diagram. In the figure, 5...Roof member, 6...
Upper surface horizontal part, 7... Section-shaped part, 8...
・Inner side wall, 8'...Outer side wall, 9.9', 1
0...Latching protrusion, 13...Mounting groove, 14...Side wall portion, 15...Circular groove, 16... Small protrusion, 17... Bottom connection plate, 18... Arc-shaped protrusion, 19...
... Space, 20 ... Heat collector, 21 ...
Heat collecting plate, 22... Heat collecting pipe, 22'...
Passageway, 23... Heat absorption layer, 24... Air layer, 25... Heat insulation sheet.

Claims (5)

[Scope of utility model registration request] 1. Each roof member that is connected to each other to form a roof has an upper horizontal part having opposite halves of connecting parts that engage with each other at both ends thereof, and a lower surface of the upper horizontal part that is vertically disposed facing each other. at least the upper horizontal part is formed of a transparent resin material, and the solar light transmitting through the upper horizontal part into a space formed by the upper horizontal part and the two side wall parts. a heat collector is provided for converting the light beam into thermal energy and having a passageway containing a fluid to be heated by the thermal energy;
A solar heat collector that can also be used as a roof. 2. A utility model in which the heat collecting body is composed of a heat collecting plate that is close to each other over almost the entire horizontal lower surface of the upper surface in the space, and a heat collecting pipe that is located on the lower surface of the heat collecting plate. A solar heat collector that can also be used as a roof according to registered claim No. 1. 3. 3. The solar heat collector for roof use as claimed in claim 2, wherein the heat collecting plate is formed of a heat conductive member having a black heat absorbing layer on its surface. 4. forming a plurality of protrusions on the lower surface of the upper horizontal portion in the space, and bringing these protrusions into contact with the heat collector,
A solar heat collector for roof use as claimed in claim 1 or 2, wherein an air layer is formed between the upper horizontal portion and the heat collector. 5. 3. A solar heat collector for roof use as claimed in claim 1 or 2, wherein the heat collector is brought into close contact with the lower surface of the upper horizontal portion in the space.